User class after removing null

User.kt

class User {

    var userId: String = ""
    var email: String = ""
    var userName: String = ""
    var name: String = ""
    var phNumber: String = ""
    var country: String = ""
    var profilePic: String = ""

    override fun equals(other: Any?): Boolean {
        if (this === other) return true
        if (other?.javaClass != javaClass) return false

        other as UserSample

        if (userId != other.userId) return false
        if (email != other.email) return false
        if (userName != other.userName) return false
        if (name != other.name) return false
        if (phNumber != other.phNumber) return false
        if (country != other.country) return false
        if (profilePic != other.profilePic) return false

        return true
    }

    override fun hashCode(): Int {
        var result = userId.hashCode()
        result = 31 * result + email.hashCode()
        result = 31 * result + userName.hashCode()
        result = 31 * result + name.hashCode()
        result = 31 * result + phNumber.hashCode()
        result = 31 * result + country.hashCode()
        result = 31 * result + profilePic.hashCode()
        return result
    }

    override fun toString(): String {
        return "UserSample{" +
                "userId='" + userId + '\'' +
                ", email='" + email + '\'' +
                ", userName='" + userName + '\'' +
                ", name='" + name + '\'' +
                ", phNumber='" + phNumber + '\'' +
                ", country='" + country + '\'' +
                ", profilePic='" + profilePic + '\'' +
                '}'
    }
}